Hilti 282537 3/4-Inch x 7-Inch Kwik Bolt 3 Carbon Steel Expansion Anchors, 10-Pack Approved by ICC-ES for use in masonry and concrete Rounded end for easy installation Dog point impact section to prevent thread damage during installation Testing according to AC193 results in smallest edge distance and spacing for all wedge anchors in class Also available in hot-dip galvanized, 304 SS and 316 SS to suit any environment